Ventilating system for projecting rooms



May 19, 1931.

B. GOLDMAN 1,805,620

VENTILATING- SYSTEM FOR PROJECTING ROOIS Filed April 5, 1930 2 Sheets-Sheet 1 3513 bib @lum/nw May 19,1931. lBGQ DM,1N 1,805,620

I VENTILA'IING SYSTEM FOR PROJECTING RQOIS Filed April 5. 1930 2 sheets-sheet 2 2 49h-J 2 1f IME' if f9 19 37 26 l 25 af 16 2 l 2. ,o e f 9 1 w 1 o i No zr '5I-- I l 1 35 e 28 29 2* Hf za I 42 I 42 m. 25 \1.,

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r means whereby the excess-heat generated by Patented May` 19, v1931 UNITE-n i STA 0in-ieril BARNEY GOLDMAN.orivnwyonmnv.

vnNTILArINe SYSTEM non ritozrnorinenooms I i Applicationiled kApril i 5,r i

the projecting lamp is sucked .out into the. open'air'beyond the exterior of the skylight.

Another object of theinvention is to pro'- vide flexible means between the lamp casing andthe conduit leading to the suction blower, so asfto compensate for any vibration caused by the projecting machine and the suction blower. A

Another objec't'of the inventiongis to pro vide automatic means whereby the foulair of' the proj ecting:` roomv is forced outinto' the atmosphere and 'replaced by freshI air. *A Another object of the invention is to provide manually operatedmeans whereby all f the 'gravitating sashesof the skylight may be opened simultaneously for Ventilating pure poses andautomatic means 4for opening them in'caseof re in the projecting room.

f And still another object of thev invention is to construct the same in units and provide y Y means whereby it'may be enlarged tovaccommodate any size projecting room and any number of projectors. Y

With these and other objects in'view the :invention resides more particularly in the' novel combinations hereinafter described and claimed, reference being made to thev accom-` panying drawings inV which similar numerr als of reference designate corresponding f parts in all the views, in which:

Fig. 1 represents a vertical end elevation of my invention, mounted on top of the curb of a roof of a building7 showing the projecting room and part of the curb in section.

Fig. 2 is a vertical side elevation of my cwithjisacurb 13 onto which` is fastened theV 1930;A seria; ne." 441,7?!0.-

invention showing thefp'osition on theroof in relation tothe projecting room which is.` shown in'section. f f Fig. Sisa vertical cross-section on a la scale, takenrwon line -3-3 of Fig. 4.

Fi'gf4 is a vertical cross-section on lin 4 4 lof Fig. 3, and j Fign is a 4horizontal section onl line 5-5 offFig. r3.

The! numeral room, having a door 11:V The 'room is fori'ned` or=builtn of lireproof material andmay be l integral with the roof 12. Extending upwardly'from the roof 12 and integral there enclosure or ventilatingapparatus 14 which is assembled yfrom anumber of units AB-C and bolted together. Each section has kat its inner ends vertically disposedfand inwardly Y extending flanges 15 which are fastened together-with bolts 16. The lower port-ion of the enclosure 14 has vertical end walls 17-18 and side walls 19, The side walls extend upwardlyfa-t an angle forming a roof- 20,ter- /ininating atl the apex' into jan 'angular .shaped fiume 2l. o 4The end walls 17-18 extend! straight; upwardly and are fastened tol the roof andthe ends of flume 21. y

.The sidewalls 19 have openings 22.` Each ropeningjis provided with a sash or cover 23;

`The lower portion thereof is `hinged at 24 kto the side [walls 19. f At eachA end of the opening, 22 are ontwardlyextending triangu-k lar members 25 f. which fare fastened to .the slantingiroof 26 thereby forming* a hoodf or j offset in'theisidewalls Y19. The triangular members 24" have their outerends -bent fini wardly at,/-27'onto which the coverw23 fits tightly'when closed."V o Byreferring to F ig. Spit` will be seen that if thelsash 23-is` releasechitfwillautomaticalf ly uncover the-opening 22 `and drop downy. *ward to ai positiony shown Ebyfvdotted lines, andheld/in thisjposition by a steelvcable 28 whichisnfastened'to the sash atonef end and totheV framefat the other.. o j

The covers23 are held ina closed position by a; series 'of'wire cables 29. These cables are fastened to the; sash. at and eachcable. is;equini),ed` with a fusellik 31.Y TheGable,m05

`10v designates the proj ectingf 60 passes over pulleys 32 and is fastened to a plate 33. To the lower end thereof is attached a chain 34 having a fuse link 31. The free end of the chain is fastened into a slit 35 of an angle iron 36 which is fastened near the roof 20r and extends downward within easy reach of the operator.

It will now be seen that if the chain 34 is released from its anchorage, the covers 23 will all open simultaneously, thereby ventilating the projecting room 10 and when the chain is again pulled down and fastened as before, all the covers will be closed. Now in case of fire in the projecting room` the flames will melt the lower or all the fuses thereby releasing all the sashes as before described.

By referring t`o Fig. 2, it will be seen that to the end wall 17 is fastened an electric fan 37 which extends into the enclosure and to the outside of wall 18 is attached a suction fan or blower 38.

The easing 39 of the electric fan 37 is fastened tothe end wall 17 and extends into the enclosure 14 near the lower portion thereof. In front of the fan 37 and pivotally mounted in the casing 39 `are a number of horizontallyv disposed slats 40 forming la. shutter, which is normally closed on account of the slats being fulcrumed at theirk upper ends but will open when the current of air from the fan forces them outward. The object of this construction is so as to prevent weather and wind from entering the projecting room, when the fan is not running.

At the opposite wall 18 which is made hollow, and near the top thereof is fastened the fresh air intake 41 which consists of an inverted goose neck fastened tothe outer side of the hollow wall.- The air passes downward and out near the bottom of the inner side through outlets 42 into the enclosure. It will now be seen that when the fan 37 is started it will force the air from the projecting room 10 out into the open and fresh air will be drawn in through the inlet 41 thereby causing a circulation of fresh air throughout the projecting room. The outlets 42 may be .xtended downward towards the floor of the projecting room if necessary.

By referring to Figs. 1-2, it` willbe seen that the projecting apparatus 43 is vmounted on the fioor of the projecting room 10 and the projected rays pass through an opening 44 in the wall. This opening may also be protected againstfire by an automatic shutter 45 ymounted to slide in guides fastened tothe wall. To the shutter is fastened a chain 46 having a fuse link 31. The free end of the chain may be fastened or anchored to any convenient place inreach of the operator. This arrangement is shownV in Fig. 1.

To the vent pipe 47 of the projecting apparatus 43 is connected a flexible metallic hose 48 which extends upward some distance and connects to a pipe 49 which extends upward and connects with fiume 21. A pipe 5() connects the fiume 21 with the suction end of the exhaust fan 38 which is located on the roof or some convenient place outside the enclosure 14 and is driven by an electric motor 52. The

v exhaust fan and motor are mounted on a base 53. The outlet 54 of the exhaust fan 51 delivers the exhaust into the open. The motor, of course, is controlled by the usual means.

It will now be seen that when the motor 52y is started, the exhaust fan 51 will suck the hot air gases generated by the lamp in the projecting apparatus through the flume 21 and connecting pipes, thereby causing a steady current of cool air to pass through the projecting apparatus thereby eliminating all danger of fire.

I claim 1. A Ventilating system comprising a room having a projecting machine arrangedtherein, a skylight enclosure extending upwardly from the top of t-he room, a conduit located in the upper part of the skylight, a flexible tube rconnecting the conduit with the projecting machine, a blower mounted on the top of the room outside of the skylight communicating with the conduit to suck the heated air from the projectingl machine to the exterior of the skylight, an inlet for conducting air into the room, gravity operated shutters normally closing a veut in the skylight, and a fan situated in the skylight for operating the shutters.

2. A Ventilating system comprising a room having a projecting machine arranged therein, a skylight enclosure extending upwardly from the top of the room, gravity operated sashes coacting with the skylight, flexible members provided with fusible links connecting the sashes with the room, means for sucking the heated air from the projecting machine to the exterior of the skylight, and an inlet for conducting fresh air from the exterior of the skylight into the room.

Signed at New York, in the county of New 

